<template>
  <div>
      <h2>{{id ? '编辑': '新建'}}文章</h2>
      <el-form label-width="120px" @submit.native.prevent="save">
        <el-form-item label="所属分类">
            <el-select v-model="model.categories" multiple >
                <el-option v-for="item in categories" :key="item._id" :label="item.name" :value="item._id"></el-option>
            </el-select>
        </el-form-item>
         <el-form-item label="标题">
            <el-input v-model="model.title" ></el-input>
        </el-form-item>
        <el-form-item label="详情">
            <vue-editor v-model="model.body" useCustomImageHandler @imageAdded="handleImageAdded"></vue-editor>
        </el-form-item>
        <el-form-item>
            <el-button type="primary" native-type="submit">保存</el-button>
        </el-form-item>
      </el-form>
  </div>
</template>

<script>
import { VueEditor } from 'vue2-editor'
export default {
     props:{
        id:{}
    },
    components: { VueEditor },
    data(){
        return{
            model: {},
            categories: [],
        }
    },
    methods:{
        async handleImageAdded(file, Editor, cursorLocation, resetUploader) {
        const formData = new FormData();
        formData.append("file", file);
        const res = await this.$http.post("upload", formData);
        Editor.insertEmbed(cursorLocation, "image", res.data.url);
        resetUploader();
        },
       async save(){
           let res; // eslint-disable-line no-unused-vars
           if (this.id) {
              res = await this.$http.put(`rest/articles/${this.id}`,this.model) // eslint-disable-line no-unused-vars
           }else{
             res = await this.$http.post('rest/articles',this.model) // eslint-disable-line no-unused-vars
           }
          

          this.$router.push('/articles/list')
          this.$message({
              type: 'success',
              message: '保存成功'
          })
        },
        async fetch(){
            const res = await this.$http.get(`rest/articles/${this.id}`) // eslint-disable-line no-unused-vars

            this.model = res.data

        },
         async fetchCategories(){
            const res = await this.$http.get(`rest/categories`) // eslint-disable-line no-unused-vars

            this.categories = res.data

        }
    },
    created(){
        this.fetchCategories()
        this.id && this.fetch()
    }
}
</script>

<style>

</style>